PSScene

last updated: June 16, 2022

This item-type includes imagery from PlanetScope sensors. PlanetScope images are from three different sensors: PS2, PS2.SD, and PSB.SB. Sensors PS2 and PS2.SD deliver four bands: red, green, blue, and near-infrared. PSB.SD sensor has an additional four bands: green I, yellow, coastal blue, and red edge.

The earliest PS2 imagery available on July, 2014 to April 29, 2022. The earliest PS2.SD imagery available is on March, 2019 to April 22, 2022. The earliest PSB.SD imagery available is mid-March, 2020 to current monitoring.

Products overview

Planet offers two geometry types for PlanetScope imagery: Basic and Ortho. Basic Scene is not orthorectified or corrected for terrain distortions. Ortho Scene is orthorectified with additional post processing applied. By default, both Basic and Ortho products are provided as GeoTIFF images. Containing geospatial metadata, the GeoTIFF file format is used in GIS and other remote sensing software.

GeoTIFFs are resampled at 3 meters and are projected into the UTM projection using the WGS84 Datum. Each GeoTIFF image can be converted to Cloud Optimized GeoTIFF and National Imagery Transmission Format 2.1 using the File Format tool in the Orders API and the Subscriptions API.

The analytic products are accompanied by a Usable Data Mask (UDM2) file. The UDM2 file is a raster file that consists of eight bands that provide information about each pixel quality in the scene. Each band provides context on whether a pixel is clear, cloudy, shadowed, etc. These bands allow users to remove pixels that aren’t useful after they download the image. UMD2 also compensates for effects due to vignetting, low signal-to-noise, or hot or cold pixels.

The PlanetScope Ortho Scene product is orthorectified and is designed for applications that require imagery with an accurate geolocation and cartographic projection. These scenes have been processed to remove distortions caused by terrain. Ortho Scenes are delivered as Visual (RGB) and Analytic products. Ortho Scenes are radiometrically-, sensor-, and geometrically-corrected products projected to a cartographic map projection. The geometric correction uses fine Digital Elevation Models (DEMs) with a post spacing of between 30 and 90 meters.

The PlanetScope Basic Scene product is a scaled Top of Atmosphere Radiance (TOAR) (at sensor) and sensor-corrected product, providing imagery as seen from the spacecraft without correction for any geometric distortions. It has scene-based framing and is not mapped to a cartographic projection. The Basic Scene product is designed for users with advanced image processing capabilities who plan to geometrically correct the product themselves. The imagery data is accompanied by Rational Polynomial Coefficients (RPCs) to enable orthorectification by the user.

Ground Control Points (GCPs) are used in the creation of every image and the accuracy of the product varies from region to region based on available GCPs.

PlanetScope satellites collect imagery as a series of overlapping frame scenes and are not organized to any particular grid system. Ortho Scenes enable users to stitch scenes together and to clip them to a tiling grid.

To read more about PlanetScope imagery, see the PlanetScope Product Specification.

PlanetScope band order

The following lists band orders of each asset. The 3-band and 4-band assets have the same band order, while the 8-band assets change to accommodate for the additional four bands.

For additional explanations of band type order and the imagery returned from different sensor data, see Understanding PlanetScope Instruments.

3-Band asset band order

The 3-band visual (natural color) band order is:

  • Band 1 = Red
  • Band 2 = Green
  • Band 3 = Blue

4-Band asset band order

The 4-band multispectral band order is:

  • Band 1 = Blue
  • Band 2 = Green
  • Band 3 = Red
  • Band 4 = Near-infrared

8-Band asset band order

The 8-band multispectral band order is:

  • Band 1 = Coastal Blue
  • Band 2 = Blue
  • Band 3 = Green I
  • Band 4 = Green
  • Band 5 = Yellow
  • Band 6 = Red
  • Band 7 = Red Edge
  • Band 8 = Near-infrared

Item properties

Property Name Description Type
_permissions Assets available for the item which the authenticated user has permission to download. array
geometry Geographic boundary, formatted as a GeoJSON polygon. json
id Globally unique item identifier. string
acquired Timestamp when the item was captured. datetime
clear_confidence_percent Percentage value: per-pixel algorithmic confidence in 'clear' classification. int [0‑100]
clear_percent Percent of clear values in the dataset. Clear values represent scene content areas (non-blackfilled) deemed to be not impacted by cloud, haze, shadow, or snow. int [0‑100]
cloud_cover Ratio of the area covered by clouds to that which is uncovered. double
cloud_percent Percent of cloud values in the dataset. Cloud values represent scene content areas (non-blackfilled) that contain opaque clouds which prevent reliable interpretation of the land cover content. int [0‑100]
ground_control Positional accuracy of the item. If the item has uncertain positional accuracy, this value is false. boolean
gsd Ground sample distance - the distance between pixel centers as measured on the ground in meters. double
instrument Name of the satellite instrument used to collect the image. string
item_type Name of the item type. string
light_haze_percent Percent of light haze values in the dataset. Light haze values represent scene content areas (non-blackfilled) that contain thin, low-altitude clouds, higher altitude cirrus clouds, and soot and dust which allow reliable recognition of land cover features, and that have up to +/-10% uncertainty on commonly used indices (EVI and NDWI). int [0‑100]
pixel_resolution Pixel resolution of the imagery in meters. double
provider Name of the item provider (e.g. "planetscope", "rapideye"). string
published Timestamp when the item was published to the Planet API. datetime
publishing_stage Stage of publishing for an item. SkySatScenes are first published in a "preview" stage and graduate to a "finalized" stage. string
quality_category Planet image quality metric: "standard" or "test". To qualify for "standard" image quality an image must meet a variety of quality standards, for example: PAN motion blur less than 1.15 pixels, compression bits per pixel less than 3. If the image does not meet these criteria it is considered "test" quality. string
satellite_id Globally unique satellite identifier. string
strip_id The unique identifier of the image stripe that the item came from. string
sun_azimuth The angle of the sun, as seen by the observer, measured clockwise from the north (0 - 360). double
sun_elevation The angle of the sun above the horizon (0 - 90). double
updated Timestamp when the item record was last updated. datetime
view_angle The satellite's across-track, off-nadir viewing angle. Positive numbers denote east, negative numbers denote west (-25 - +25). double
visible_confidence_percent Visible values represent the fraction of the scene content (excluding the portion of the image which contains blackfill) which comprises clear, light haze, shadow, snow/ice categories, and is given as a percentage ranging from zero to one hundred. int [0‑100]
visible_percent Average of confidence percent for clear_percent, light_haze_percent, shadow_percent and snow_ice_percent. int [0‑100]
anamolous_pixels Percentage of pixels that may have errors. Represented spatially in the UDM. double
satellite_azimuth Spacecraft off track pointing direction, in degrees (0-360). float
heavy_haze_percent Percent of heavy haze values in the dataset. Heavy haze values represent scene content areas (non-blackfilled) that contain thin low altitude clouds, higher altitude cirrus clouds, soot, and dust which allow fair recognition of land cover features, but not having reliable interpretation of the radiometry or surface reflectance. int [0‑100]
shadow_percent Percent of shadow values in the dataset. Shadow values represent scene content areas (non-blackfilled) not fully exposed to the solar illumination as a result of atmospheric transmission losses due to cloud, haze, soot, and dust, and therefore do not allow for reliable interpretation of the radiometry or surface reflectance. int [0‑100]

Available asset types

Asset Name Description
ortho_analytic_3b Radiometrically-calibrated analytic image stored as 16-bit scaled radiance. (Note: This product is only available for instrument type “PS2”).
ortho_analytic_4b Radiometrically-calibrated analytic image stored as 16-bit scaled radiance.
ortho_analytic_8b Radiometrically-calibrated analytic image stored as 16-bit scaled radiance.
ortho_analytic_8b_sr PlanetScope atmospherically corrected surface reflectance product.
ortho_analytic_8b_xml Radiometrically-calibrated analytic image metadata.
ortho_analytic_4b_sr PlanetScope atmospherically corrected surface reflectance product.
ortho_analytic_4b_xml Radiometrically-calibrated analytic image metadata.
ortho_analytic_3b_xml Radiometrically-calibrated analytic image metadata. (Note: This product is only available for instrument type “PS2”).
basic_analytic_4b Unorthorectified radiometrically-calibrated analytic image stored as 16-bit scaled radiance.
basic_analytic_8b Unorthorectified radiometrically-calibrated analytic image stored as 16-bit scaled radiance.
basic_analytic_8b_xml Unorthorectified radiometrically-calibrated analytic image metadata.
basic_analytic_4b_rpc Rational polynomial coefficient for unorthorectified analytic image stored as 12-bit digital numbers.
basic_analytic_4b_xml Unorthorectified radiometrically-calibrated analytic image metadata.
basic_udm2 Unorthorectified usable data mask (Cloud 2.0). Read more about this new asset.
ortho_udm2 Usable data mask (Cloud 2.0).
ortho_visual Visual image with color-correction.

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